This 16th-century house tells the city's history through old artifacts and quirky tales.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A small but charming botanical garden that contains many exotic plant species.

Elaborate tile work in this railway station tells the story of Portugal.

A hidden three-foot-wide house separates these two regal churches.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

This small chapel is built of human bones and decorated with a golden skeleton.

Perhaps the most spectacular grotto along the Algarve coastline.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This patch of old-growth forest is home to Canada's gnarliest tree.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Saved by a logger, this Douglas fir is one of the last great old-growth trees in Canada.

By public opinion, this is Canada's knottiest tree.